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to the grain boundary strengthening and the interstitial solid solution strengthening.It is expectable that the MA and SPS processes are the promising methods to synthesize ultra-fine grains and homogenous...Microstructure and mechanical properties of ultra-fine grained MoNbTaTiV refractory high-entropy alloy fabricated by spark plasma sinteringQing Liu,Guofeng Wang,Xiaochong Sui,Yongkang Liu,Xiao Li......
; 文献标志码:A Corrosion behavior of ultra-fine grain bulk Al-5%Cu alloy fabricated by equal-channel angular pressing SONG Dan, MA Ai-bin, JIANG Jing-hua, LIN Ping-hua, FAN Jun-feng (College of Mechanics and Materials, Hohai University, Nanjing 210098, China) Abstract: The effect of strain-induced grain refinement on the corrosion behavior of ultra-fine grain bulk Al-5%Cu alloy fabricated......
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Preparation of La0.9RE0.1MnO3 Ultra-fine Particles Used for CH4 Oxidation 刘全生1,郑海涛1,张通1,刘源1 (1.Department of Chemical Engineering, Inner Mongolia Polytechnic University, Huhehot 010062, China) Abstract:A technique for preparing perovskite-type oxides was developed. By this technique, ultra-fine particles of La0.9RE0.1MnO3 (RE: Y, Ce, Pr, Sm, Gd,or Dy) with high surface area and single......
, VALIEV R Z, LANGDON T G. Structural evolution and the Hall-Petch relationship in an Al-Mg-Li-Zr alloy with ultra-fine grain size [J]. Acta Materialia, 1997, 45: 4751-4757. [2] IWAHASHI Y, FURUKAWA M.... Structure and properties of ultra-fine grain Cu-Cr-Zr alloy produced by equal-channel angular pressing [J]. Acta Materialia, 2002, 50: 1639-1651. [12] IWAHASHI Y, WANG J, HORITA Z, NEMOTO M, LANGDON T G......
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High Carbon Alloy Steels with Multiple Types of Ultra-fine Carbides and Their Characteristics QI Yu-hong1,DAI Yu-mei1,LIU Yan-xia1,ZHANG Zhan-ping1,GAO Hong-tao1,MA Yong-qing1 (1.Dalian Maritime University, Dalian, China) 摘要:Under normal forging and annealing conditions, there are different ultra fine carbides (M3C, M23C6, M7C3, M6C and MC) in high carbon alloy steels when alloy composition......
, Changsha 410083, China) Abstract: Ultra-fine Mo-30Cu composite powders with grain size of 17-50 nm were fabricated by sol-spray drying, calcination and subsequent hydrogen reduction process. The results...%, and their grains are fine, and the microstructures are homogeneous. The maximum tensile strength and elongation rate of the alloy are 755 MPa and 6.41%, respectively. Key words: Mo-Cu alloy; ultra-fine......
Preparation of Well Dispersed and Ultra-Fine Ce(Zr)O2 Mixed Oxide by Mechanochemical Processing 陈伟凡1,李永绣1,程昌明1,周雪珍1 (1.Rare Earth Technology Research Center, Nanchang Univeisity, Nanchang 330047, China) Abstract:Ultra-fine CeO2-ZrO2 mixed oxide was successfully synthesized by wet-solid phase mechanochemical processing, Ce2(CO3)3·8H2O, ZrOCl2·xH2O and ammonia were used as reactants. It is found......
Metallurgy, Central South University, Changsha 410083, China) Abstract: The ultra-fine grained (UFG) Ti-55511 near β titanium alloy with grain size of 0.1-0.5 μm was prepared by hot rolling. The effects... grow up to a certain size. The mechanical property evolution during annealing process is mainly related to the effect of strengthening mechanisms. Key words: Ti-55511 alloy; ultra-fine grain; heat......